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Regioselective Synthesis of Pyrazole Triflones Based on Triflyl Alkyne Cycloadditions.
MedLine Citation:
PMID:  23035910     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The regioselective synthesis of pyrazole triflones has been achieved by 1,3-dipolar cycloaddition of triflyl alkynes and hydrazonoyl chloride in the presence of Hünig's base. Pyrazolo[5,1-a]isoquinoline triflones were also regioselectively synthesized for the first time via tandem 1,3-dipolar cycloaddition/oxidative aromatization between triflyl alkynes and C,N-cyclic azomethine imines.
Authors:
Hiroyuki Kawai; Zhe Yuan; Etsuko Tokunaga; Norio Shibata
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-4
Journal Detail:
Title:  Organic letters     Volume:  -     ISSN:  1523-7052     ISO Abbreviation:  Org. Lett.     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100890393     Medline TA:  Org Lett     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Frontier Materials, Graduate School of Engineering, Nagoya Institute of Technology , Gokiso, Showa-ku, Nagoya 466-8555, Japan.
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